package day11;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * Created with IntelliJ IEDA.
 * Description:
 * User:86186
 * Date:2022-10-20
 * Time:22:21
 */
public class Choose {
    public static void main(String[] args) {
//        Map<String,String> map = new HashMap<>();
//        map.put("name",null);
//        map.put("name","jack");
//        System.out.println(map.size());
        ArrayList list = new ArrayList<>();
    }
}
